The genus Æger of Münster was established in 1839, to contain some of the most beautiful forms of Prawn-like Crustacea found in the Solenhofen Limestone of Bavaria (see Beiträge, vol. ii. p. 64). Dr. Oppel, in his Palæontologische Mittheilungen (Stuttgart, 1862), p. 109, thus defines the genus:

The inner antennæ (antennules), with their long bifid filaments, start from three strong basal articulations, and attain in most specimens to twice the length of the whole body. The antennal scales are thin and very long. The basal joints of the inner antennæ are finely serrated along their border. They are much elongated, and project further in front of the head than the outer antennæ, as is the case in the existing Shrimps.

The occurrence of numerous terraces on the mountain slopes over-looking the Dead Sea has been reported by several observers, but no accurate measurements of their elevations or definite correlation of the terraces on the opposite slopes of the depression, seem to have been attempted. In the central part of the Wady Arabah on the west flank of the promontory known as Samrat el Fedan, a terrace, or perhaps more properly a gravel bar, has been observed by Hull at an elevation of about 1300 feet above the Dead Sea. This is apparently a definite record of the surface level of the Dead Sea during a former period. On the sides of the Jordan valley the terraces range in height from a few feet to 750 feet above the river. The measurements reported show great variation due principally to an inclination of the surfaces of the terraces, towards the centre of the valley, but indicating also that they are not horizontal in the direction of drainage.

Having lately had the privilege of visiting several of the Continental Museums containing collections especially of Palæontological importance, some notes will perhaps be acceptable upon the present aspect of that branch of the science in which the writer is particularly interested. Such a broad survey imparts so many new ideas, and leaves so many pleasant memories of Naturalists in the midst of their work, that it is impossible adequately to incorporate the results in any brief notice; but a few points at least seem to be of general interest.

About nine years ago I contributed to the pages of this Magazine, an account of the two above-named volcanoes, which was founded on observations made during brief visits by myself in the year 1873, and on the published records of visits by previous observers. My present object is to draw attention to information which has since then been acquired regarding them.

Considering the interest that has been awakened of late in the Bagshot Beds of the London Basin, and the paucity of good sections open to the light of day exhibiting any considerable vertical range of those beds, it has occurred to me that a fuller description of these Finchampstead sections may be of sufficient interest to students of Tertiary geology to justify its appearance in the pages of the Geological Magazine. In the task we have before us of attempting to workout the old physical geography of the Lower Thames Basin in later Eocene times, every contribution of facts (by no means the easiest part of inductive science) must be welcome to students of the subject. The problem was sketched in its outlines and bequeathed to his successors by the versatile mind of the late Prof. John Phillips, F.R.S. “In considering these remarkable strata (he says, of the London Bagshot Beds), which were accumulated in a period so near, geologically speaking, to our own, we are presented with problems of great interest, which, if they can be solved, will have more than local application.

As not much appears to be known about the geology of Somali Land, a description of some specimens, forwarded by Col. M. Gosset, and collected by Capt. King, the Political Officer at Zaila, may be of interest. These specimens were sent to Prof. Rupert Jones, who requested Professor Bonney to undertake the description of them. As, owing to unexpected pressure of work, he found it difficult to spare time for this purpose, he placed them in my hands, and the work has been done at University College under his superintendence.

In the Geological Magazine for November last (Decade III. Vol. IV. p. 481, Pl. XIII.) I gave a brief description of a new species of Eurypterus from the Lower Carboniferous Shales, Eskdale, Scotland, which I named Eurypterus scabrosus.

I referred to other Carboniferous forms, and briefly mentioned one from the Lower productive Coal-measures, Darlington, Pennsylvania, U.S.A., figured as a woodcut only in the American Phil. Soc. Proc. vol. xix. p. 152, 1881.

Please make the following corrections:—Geol. Mag. March No. p. 123, in footnote, line 2, for “Memoir” read “Meunier.” In May No. p. 240, line 33 from top of page, for the work which Mr. Lee has actually done—read “the work which we see actually done.”—In August Number, p. 382, line 3 from bottom, for lavas read laws.—Edit. Geol. Mag.